Today I had to upgrade my server from debian 9 to 10. Unfortunately, lxd failed to upgrade smoothly.
I had lxd 3.11 from snap and a bunch of containers.
Debian buster installed “new” iptables and lxd uses old iptables, now called iptables-legacy. I spent hucking amount of time trying to understand why containers failed to obtain IP address, because iptables -nvL worked as usual, showing my /etc/iptables/* rules and no automatic rules from lxd. And my complain is that lxd did not notify me about this issue but silently used legacy iptables! That’s wrong – if lxd does not work with new iptables it should tell the user to update alternatives.
lxdbr0 lost important part of configuration – ipv4.nat: “true”. Spent some time figuring this out, too…
The whole iptables thing has been fixed for a few releases now.
Not sure how a LXD network would have lost a config option on system upgrade though, that seems odd.
name: lxd
summary: System container manager and API
publisher: Canonical✓
store-url: https://snapcraft.io/lxd
license: unset
description: |
**LXD is a system container manager**
With LXD you can run hundreds of containers of a variety of Linux
distributions, apply resource limits, pass in directories, USB devices
or GPUs and setup any network and storage you want.
LXD containers are lightweight, secure by default and a great
alternative to running Linux virtual machines.
**Run any Linux distribution you want**
Pre-made images are available for Ubuntu, Alpine Linux, ArchLinux,
CentOS, Debian, Fedora, Gentoo, OpenSUSE and more.
A full list of available images can be [found here](https://images.linuxcontainers.org)
Can't find the distribution you want? It's easy to make your own images too, either using our
`distrobuilder` tool or by assembling your own image tarball by hand.
**Containers at scale**
LXD is network aware and all interactions go through a simple REST API,
making it possible to remotely interact with containers on remote
systems, copying and moving them as you wish.
Want to go big? LXD also has built-in clustering support,
letting you turn dozens of servers into one big LXD server.
**Configuration options**
Supported options for the LXD snap (`snap set lxd KEY=VALUE`):
- criu.enable: Enable experimental live-migration support [default=false]
- daemon.debug: Increases logging to debug level [default=false]
- daemon.group: Group of users that can interact with LXD [default=lxd]
- ceph.builtin: Use snap-specific ceph configuration [default=false]
- openvswitch.builtin: Run a snap-specific OVS daemon [default=false]
[Documentation](https://lxd.readthedocs.io)
commands:
- lxd.benchmark
- lxd.buginfo
- lxd.check-kernel
- lxd.lxc
- lxd
- lxd.migrate
services:
lxd.activate: oneshot, enabled, inactive
lxd.daemon: simple, enabled, active
snap-id: J60k4JY0HppjwOjW8dZdYc8obXKxujRu
tracking: latest/stable
refresh-date: 2019-03-21
channels:
latest/stable: 4.0.0 2020-04-15 (14594) 62MB -
latest/candidate: 4.0.0 2020-04-15 (14594) 62MB -
latest/beta: ↑
latest/edge: git-c4c1cda 2020-04-15 (14604) 62MB -
4.0/stable: 4.0.0 2020-04-15 (14594) 62MB -
4.0/candidate: 4.0.0 2020-04-15 (14594) 62MB -
4.0/beta: ↑
4.0/edge: ↑
3.23/stable: 3.23 2020-03-30 (14133) 70MB -
3.23/candidate: 3.23 2020-03-30 (14133) 70MB -
3.23/beta: ↑
3.23/edge: ↑
3.22/stable: 3.22 2020-03-18 (13901) 70MB -
3.22/candidate: 3.22 2020-03-19 (13911) 70MB -
3.22/beta: ↑
3.22/edge: ↑
3.21/stable: 3.21 2020-02-24 (13522) 69MB -
3.21/candidate: 3.21 2020-03-04 (13588) 69MB -
3.21/beta: ↑
3.21/edge: ↑
3.20/stable: 3.20 2020-02-06 (13300) 69MB -
3.20/candidate: 3.20 2020-02-06 (13300) 69MB -
3.20/beta: ↑
3.20/edge: ↑
3.19/stable: 3.19 2020-01-27 (13162) 67MB -
3.19/candidate: 3.19 2020-01-27 (13162) 67MB -
3.19/beta: ↑
3.19/edge: ↑
3.18/stable: 3.18 2019-12-02 (12631) 57MB -
3.18/candidate: 3.18 2019-12-02 (12631) 57MB -
3.18/beta: ↑
3.18/edge: ↑
3.0/stable: 3.0.4 2019-10-10 (11348) 55MB -
3.0/candidate: 3.0.4 2019-10-10 (11348) 55MB -
3.0/beta: ↑
3.0/edge: git-81b81b9 2019-10-10 (11362) 55MB -
2.0/stable: 2.0.11 2019-10-10 (8023) 28MB -
2.0/candidate: 2.0.11 2019-10-10 (8023) 28MB -
2.0/beta: ↑
2.0/edge: git-160221d 2020-01-13 (12854) 27MB -
installed: 3.11 (10343) 56MB devmode
I just typed snap refresh lxd and lxd was quickly upgraded to 4.0.0 (while snap refresh told me that everything is up to date). And devmode disappeared after upgrade.
